What is that poem about a person whose ambition is declining when he is nearly forty?

The name of this poem is "Years", and the whole poem is as follows:

After thousands of books and sails have been exhausted, it is not easy to dissolve the oil and salt. Only when the black hair gradually turns white, I realize that the years are not forgiving. people. As I approach forty, my ambition is gradually declining, and I have lamented for a long time that my youth will never come back again. He struggled all over the place to no avail, and half of the blue hair on his forehead was white. The eyes are blurred and the face is stained with haze. My belly is full of burdens and it is difficult to lift my legs. Time has given me hundreds of pounds of meat, but has it ever left me a tael of wealth?

The meaning of this poem is: Life is only a few decades in this world, because we did not grasp the time well, did not fight hard, and worked hard. When you get old, you get nothing.

Life insights at the age of forty

1. The meaning of life should be in the process, not the conclusion. Therefore, one person should not influence another person with his or her own experience and opinions, not to mention that he is not you, and you are not him. Everyone's growth process is different. You should taste the ups and downs of life for yourself. Trying is life.

2. In life, the most important thing is not your situation, but how you view your situation.

3. No matter where you are, what position you hold, what situation you are in, or what you want, you must be sincerely grateful for the blessings and possessions of life, tolerate others' unintentional mistakes and harm, and smile. The ups and downs and misfortunes in the long life are collected from the experience and insights of the soul. The wind is light and the clouds are calm, and the favors and disgrace are not surprised. You will find that the ordinary days in life are broad because of love, warm because of touching, and heavy because of giving. Work hard and be fulfilled.